Try to observe where the bullet nose is hitting if not feeding into the chamber. For instance, if bullet is hitting the top of chamber mouth the feed lips on the mag "might" be too wide & need to be closed together a bit. If bullet hitting low, the feed lips might be too tight in the front. Just basic troubleshooting, & may not be relevant at all. But something to look for. Can't say about extraction.
My similar to Marlin, Savage HMR is like that. Feeds like greased lightning until the feed lips start to spread & then adjustment is required.
